VOL. XLVII.J PHILOSOPHICAL TRANSACTIONS. 137 



times 1 oz, of soap, and 3 pints of lime-water, every day, observing a very re- 

 gular diet. After some months he found himself extremely easy in his ordinary 

 motions ; but he never ventured to walk far, nor go at all in a wheel-carriage, 

 keeping himself as quiet as he could, till he should be obliged to go to par- 

 liament. 



Just before he left the country, Mr. Ranby made him a visit; and though he 

 had felt no pain nor symptom of his disease for some time, he advised him not 

 to hazard going to town by any means, unless it were in a litter. However, 

 having caused an easy voiture to be made, he undertook the journey in it the 

 20th of November 1748, which was regulated by the horses going no faster than 

 a gentle walk, and only 20 miles a day. The cold weather, and the tediousness 

 of creeping so slow, made the coachman sometimes fall into a trot, which he 

 perceived, but finding no inconvenience, did not check his pace. The set stages 

 were observed only the last 2 days, and particularly the last day the coachman 

 drove from Harlow to Whitechapel as full a trot as the horses could well go at 

 any time ; and he felt not the least disorder. He took a chair at Whitechapel, 

 and all that winter made use of nothing else, and continued extremely well'; 

 but, about 2 months after his coming to town, he found some small uneasiness 

 in making water, and in 2 or 3 days he voided with his urine something of a 

 flat shape about the size of a silver penny, covered with a soft white mucus, 

 which, when it was dry, was plainly of a stony substance ; and after that had 

 never been troubled with the least symptom of that cruel disorder -. And he found 

 himself so well in the country last year, that, contrary to the advice of all his 

 friends, he undertook in his coach a journey to Chatsworth in Derbyshire from 

 his house in the countr}', at least l6o miles, to pay a visit to the Duke of De- 

 vonshire, the horses going as round a trot as they could conveniently, according 

 to the road; and the last 10 or rather 15 miles, from Hardwicke to Chatsworth» 

 a most rugged and rocky way, they neither spared themselves nor the horses. 

 The great shocks on the stones broke the springs of the coach, but gave 

 him not the least uneasiness, and he had ever after continued, with respect to 

 his former disorder, as well as ever he was in his life ; but he had now and then 

 voided, after he had sat a great while in the House of Commons, some re 

 gravel. 



X. Extract of the Observations maae in Italy, by the j4bbt! Nollet, F. R. S. on 

 the Grotta de Cam. Translated from the French by Thomas Stack, M. D. 

 F. R. S., p. 48. 



This celebrated grotto is described in numerous books of travels, &c. Dogs 

 exposed to the gas emitted from this cavern are thrown into a state of asphyxia, 

 from which, however, they soon recover on being brought into the open air. 



VOL. X. T 



